The Lord also said to Moses: Arise early, and stand before Pharao; for he will go forth to the waters: and thou shalt say to him: Thus saith the Lord: Let my people go to sacrifice to me.
וַיַּ֤עַשׂ יְהוָה֙ כֵּ֔ן וַיָּבֹא֙ עָרֹ֣ב כָּבֵ֔ד בֵּ֥יתָה פַרְעֹ֖ה וּבֵ֣ית עֲבָדָ֑יו וּבְכָל־אֶ֧רֶץ מִצְרַ֛יִם תִּשָּׁחֵ֥ת הָאָ֖רֶץ מִפְּנֵ֥י הֶעָרֹֽב׃
One Church Father comments on this verse
Pharaoh, as mentioned in verse 15 of Chapter 5, likely proceeds to the Nile in a formal manner, possibly for a festival—some suggest it marks the occasion of the Nile's waters receding 120 days after the onset of the flood—or to present offerings and prayers in response to the disaster.
Passages read together with this verse.
THEOSIS